Trijicon Suppressor/Optic Height Sights continue the low-light and no-light prowess of the original Bright & Tough Night Sights. With unique versatility for the ever evolving pistol landscape, Trijicon Suppressor/Optic Height Sights are designed for pistols fitted with suppressors and also as a backup iron sight for pistol-mounted red dots Front Sight Width: 0.144". Front Sight Height: 0.503". Rear Sight Height: 0.554". Fits Glock Models: 42,43,43x,43e, and 48.